TMT PLX Pen Light - 5" overall. Black aircraft aluminum construction with pocket clip. Regulated circuit for maximum output. CREE XL-EB LED. Gold plated contacts. Tailcap switch with momentary-on. Up to 90 lumen output. Visible to 40 meters. 4 hour burntime per battery set. Water resistant. Impact resistant to 3 meters. Uses two AAA batteries (included).